/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.replica.replicaisland;

/**
 * Implements a bitmap that can be scrolled in place, such as the background of
 * a scrolling world.
 */
public class ScrollableBitmap extends DrawableBitmap {
	private float mScrollOriginX;
	private float mScrollOriginY;

	public ScrollableBitmap(Texture texture, int width, int height) {
		super(texture, width, height);
	}

	public void setScrollOrigin(float x, float y) {
		mScrollOriginX = x;
		mScrollOriginY = y;
	}

	@Override
	public void draw(float x, float y, float scaleX, float scaleY) {
		super.draw(x - mScrollOriginX, y - mScrollOriginY, scaleX, scaleY);
	}

	public float getScrollOriginX() {
		return mScrollOriginX;
	}

	public void setScrollOriginX(float scrollOriginX) {
		mScrollOriginX = scrollOriginX;
	}

	public float getScrollOriginY() {
		return mScrollOriginY;
	}

	public void setScrollOriginY(float scrollOriginY) {
		mScrollOriginY = scrollOriginY;
	}
}
